3. Blueprint

The modern landscapes of information infrastructures are commonly designed and organized as stacks of heterogeneous runtime environments with comon frameworks. A popular combination of components for the enterprise applications is the application of Python in combnation with Java components and application servers. The access to the Java modules is provided by the implementation Jython, which integrates a seamless access to Java extensions including standard Java libraries. This supports the easy implementation of mixed components by modules implemented in Java with modules implemented in Pyhton.

Python is designed to be compiled automatically on-the-fly during the execution with the option of precompilation. Java needs to be compiled before execution and relies during runtime solely on the compiled libraries. Thus the requirements for the packaging of a combined application comprising components of both implementations is slightly different from a homogeneous Python application.

The setupjavax component provides hereby two additional commands build_java and build_jy.

_images/setuplib-architecture.png

Figure: Setuplib Integration zoom

  • build_jy - for Jython:

    build_jy extends build_py by scan for and compilation of included Java modules.

  • build_java - for Java:

    build_java introduces standalone Java modules.